Not that I'm picking at the whole "compliancy in all browsers" thing, but I don't see why so many people go on about coding in full-standards and so that their web page works in every browser known to man. Sure I guess it's all good practice, but when has a real client ever really cared about how valid your code is or how many unknown browsers your page can be viewed in? All clients really care about is how their web page will make them money. If you reduce the loading time, that's great. If you reduce the page file size, that's even better because it's saving them money on hosting bills. I like making things look valid, but there's valid, and then there's "valid".

As far as the resource goes, there's absolutely nothing wrong with it, but since people who want to be "validation freaks" will more than likely view this other than an actual thread on this, it's a good point to make.